SIST EN 17450-3:2025

Fixed firefighting systems - Components for water mist systems - Part 3: Requirements and test methods for check valves

This document specifies the requirements and describes the test methods for check valves for water mist firefighting systems.
Check valves allow the passage in the direction of flow and they prevent flow in the reverse direction.
This document is applicable to check valves installed in the pipework of water mist firefighting systems.

Ortsfeste Brandbekämpfungsanlagen - Bauteile für Wassernebelsysteme – Teil 3: Anforderungen und Prüfverfahren für Rückschlagventile

Dieses Dokument legt die Anforderungen fest und beschreibt die Prüfverfahren für Rückschlagventile für Wassernebel-Brandbekämpfungsanlagen.
Rückschlagventile lassen den Durchfluss in Durchflussrichtung zu und verhindern den Durchfluss in der umgekehrten Richtung.
Dieses Dokument ist anwendbar für Rückschlagventile, die im Rohrleitungssystem von Wassernebel-Brand¬bekämpfungsanlagen eingebaut sind.

Installations fixes de lutte contre l’incendie - Composants pour systèmes à brouillard d’eau - Partie 3 : Exigences et méthodes d’essai pour les clapets anti-retour

Le présent document spécifie les exigences et décrit les méthodes d’essai relatives aux clapets anti-retour pour les installations de lutte contre l’incendie à brouillard d’eau.
Les clapets anti-retour permettent le passage dans le sens de l’écoulement et empêchent l’écoulement dans le sens inverse.
Le présent document est applicable aux clapets anti-retour installés dans les canalisations des installations de lutte contre l’incendie à brouillard d’eau.

Vgrajeni gasilni sistemi - Sestavni deli za sisteme s pršečo vodo - 3. del: Zahteve in preskusne metode za kontrolne ventile

General Information

• Status: Published
• Public Enquiry End Date: 18-Sep-2024
• Publication Date: 13-May-2025
• ICS: 13.220.10 - Fire-fighting
• Technical Committee: POZ - Požarna varnost
• Current Stage: 6060 - National Implementation/Publication (Adopted Project)
• Start Date: 17-Apr-2025
• Due Date: 22-Jun-2025
• Completion Date: 14-May-2025
• Ref Project: EN 17450-3:2025 - Fixed firefighting systems - Components for water mist systems - Part 3: Requirements and test methods for check valves

Standards Content (Sample)

SLOVENSKI STANDARD
01-junij-2025
Vgrajeni gasilni sistemi - Sestavni deli za sisteme s pršečo vodo - 3. del: Zahteve
in preskusne metode za kontrolne ventile
Fixed firefighting systems - Components for water mist systems - Part 3: Requirements
and test methods for check valves
Ortsfeste Brandbekämpfungsanlagen - Bauteile für Wassernebelsysteme – Teil 3:
Anforderungen und Prüfverfahren für Rückschlagventile
Installations fixes de lutte contre l’incendie - Composants pour systèmes à brouillard
d’eau - Partie 3 : Exigences et méthodes d’essai pour les clapets anti-retour
Ta slovenski standard je istoveten z: EN 17450-3:2025
ICS:
13.220.10 Gašenje požara Fire-fighting
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

EN 17450-3
EUROPEAN STANDARD
NORME EUROPÉENNE
April 2025
EUROPÄISCHE NORM
ICS 13.220.20
English Version
Fixed firefighting systems - Components for water mist
systems - Part 3: Requirements and test methods for check
valves
Installations fixes de lutte contre l'incendie - Ortsfeste Brandbekämpfungsanlagen - Bauteile für
Composants pour systèmes à brouillard d'eau - Partie 3 Wassernebelsysteme - Teil 3: Anforderungen und
: Exigences et méthodes d'essai pour les clapets anti- Prüfverfahren für Rückschlagventile
retour
This European Standard was approved by CEN on 2 March 2025.

CEN members are bound to comply with the CEN/CENELEC Internal Regulations which stipulate the conditions for giving this
European Standard the status of a national standard without any alteration. Up-to-date lists and bibliographical references
concerning such national standards may be obtained on application to the CEN-CENELEC Management Centre or to any CEN
member.
This European Standard exists in three official versions (English, French, German). A version in any other language made by
translation under the responsibility of a CEN member into its own language and notified to the CEN-CENELEC Management
Centre has the same status as the official versions.

CEN members are the national standards bodies of Austria, Belgium, Bulgaria, Croatia, Cyprus, Czech Republic, Denmark, Estonia,
Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway,
Poland, Portugal, Republic of North Macedonia, Romania, Serbia, Slovakia, Slovenia, Spain, Sweden, Switzerland, Türkiye and
United Kingdom.
EUROPEAN COMMITTEE FOR STANDARDIZATION
COMITÉ EUROPÉEN DE NORMALISATION

EUROPÄISCHES KOMITEE FÜR NORMUNG

CEN-CENELEC Management Centre: Rue de la Science 23, B-1040 Brussels
© 2025 CEN All rights of exploitation in any form and by any means reserved Ref. No. EN 17450-3:2025 E
worldwide for CEN national Members.

Contents Page
European foreword . 3
1 Scope . 4
2 Normative references . 4
3 Terms and definitions . 4
4 Requirements . 4
4.1 General design . 4
4.2 Internal pressure . 5
4.3 Strength . 5
4.4 Leak resistance . 5
4.5 Resistance to water cycling . 5
4.6 Function . 5
4.7 Resistance against corrosion . 5
4.8 Vibration resistance . 5
4.9 Documentation . 5
4.9.1 Installation, operation, testing and maintenance documentation . 5
4.9.2 Testing authority documentation . 5
4.9.3 Design documentation . 6
5 Test methods . 6
5.1 Test conditions . 6
5.2 Compliance . 6
5.3 Internal pressure test . 6
5.4 Strength test . 6
5.5 Leak resistance test . 7
5.6 Water cycling test . 7
5.7 Function . 7
5.8 Corrosion tests . 7
5.9 Vibration resistance . 7
6 Marking . 8
Bibliography . 9

European foreword
This document (EN 17450-3:2025) has been prepared by Technical Committee CEN/TC 191 “Fixed
firefighting systems”, the secretariat of which is held by BSI.
This European Standard shall be given the status of a national standard, either by publication of an
identical text or by endorsement, at the latest by October 2025, and conflicting national standards shall
be withdrawn at the latest by October 2025.
Attention is drawn to the possibility that some of the elements of this document may be the subject of
patent rights. CEN shall not be held responsible for identifying any or all such patent rights.
EN 17450, Fixed firefighting systems — Water mist systems, consists of the following parts:
— Part 1: Product characteristics and test methods for strainer and filter components
— Part 2: Product characteristics and test methods for nozzles
— Part 3: Product characteristics and test methods for check valves
— Part 4: Product characteristics and test methods for control deluge valves and actuators
— Part 5: Product characteristics and test methods for pressure switches
Any feedback and questions on this document should be directed to the users’ national standards body.
A complete listing of these bodies can be found on the CEN website.
According to the CEN-CENELEC Internal Regulations, the national standards organisations of the
following countries are bound to implement this European Standard: Austria, Belgium, Bulgaria, Croatia,
Cyprus, Czech Republic, Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Iceland, Ireland,
Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Republic of North
Macedonia, Romania, Serbia, Slovakia, Slovenia, Spain, Sweden, Switzerland, Türkiye and the United
Kingdom.
Under preparation.
Document planned
1 Scope
This document specifies the requirements and describes the test methods for check valves for water mist
firefighting systems.
Check valves allow the passage in the direction of flow and they prevent flow in t
...